. >>> president obama and republican candidate mitt romney campaign today in the important battleground state of ohio. yesterday president obama addressed the united nations general assembly where syria and iran took center stage. nbc's tracie potts joins us with those details. >> reporter: good morning. the focus ohio, as you said, a key battleground state where the president now has a big lead. >> i accept that people will call me awful things every day, and i will always defend their right to do so. >> fresh off his speech at the united nations, president obama heads to ohio today with an eight-point lead according to "the washington post." mitt romney is there today, too, talking jobs and taxes. >> is there anybody who thinks that raising taxes will help grow the economy? >> no! >> his plan is to continue what he has done before. the status quo has not worked. >> romney attacking someone on taxes? that's like me attacking someone for being fashion nat in politics. >> reporter: romney is at a two-day bus tour with his running mate. >> after four years of getting the run-around, ameri